OTHER FINANCIAL INFORMATION - Items reported in accrued expenses (Details) - USD ($) $ in Millions |
Dec. 31, 2019 |
Dec. 31, 2018 |
|---|---|---|
| OTHER FINANCIAL INFORMATION | ||
| Deferred revenue | $ 160.9 | $ 170.5 |
| Accrued payroll and other employee compensation | 145.4 | 133.6 |
| Product warranty | 43.2 | 44.9 |
| Estimated Litigation Liability, Current | 92.9 | 60.0 |
| Lease Incentive, Payable, Current | 425.3 | 395.3 |
| Accrued Liabilities, Current | $ 867.7 | $ 804.3 |